This book examines context while applications access their configuration settings. It is based on the Elektra platform. Context includes all factors that influence an application's configuration settings, for example, information about geographical locations, installed packages, hardware configurations, network connections, and configuration settings of the system. If software better adapts its behavior according to its context, we call it more context aware. Applications tend to be adaptable by configuration settings. Context-aware configurations are configuration settings in accordance with their context.